Watch-movement



2 Sheets-Sheet 1.

' G. HUNTER.

Assignor to the ELGIN NATIONAL WATCH COMPANY.

WATCH MOVEMENT.

Beissued July 23, 1889.

B w o 9 1 iv a 45; L as l 1r I, wl 1 a I W a. H H fl, H I a 2 Sheets-Sheet 2.

G. HUNTER. Assignor to the ELGnI NATIONAL WATCH COMPANY.

WATCH MOVEMENT.

, No. 11,014. Reissued'July 23, 1889.

ununnmuunlnm 1111111 UIIIHIIMIHHM a mans, rum-11 w-niri m no UNITED STATES PATENT OFFICE.

-GEORGE HUNTER, OF ELGIN, ASSIGNOR TO THE ELGIN NATIONAL \VATCH COMPANY, OF CHICAGO, ILLIN OIS.

WATCH-MOVEMENT.

SPECIFICATION forming part of Reissued Letters Patent No. 11 ,014, dated July 23, 1889.

Original No. 347,272, dated August 10, 1886. Application for reissue filed May 31, 1889. Serial No. 3l2,760%.

To all whom it may concern: It consists, further, in a full-plate watch- Be it known that I, GEORGE HUNTER, of. movement in which the barrel-bridge is se- Elgin,in the county of Kane, and in the State cured to and supported entirely by the botof Illinois, did invent certain new and useful tom plate, substantially as and for the pur- 55 Improvements in IVatch-Movements, for pose hereinafter shown.

' which Letters Patent of the United States, It consists, further, in a full-plate watch- No. 347,272, were issued upon the th day of movement in which the barrel-arbor is in August, 1886, which Letters Patent have part journaled within a bridge that is disproved defective, in that they do not fully connected from and independent of the top IO cover the invention which was shown in the plate, substantially as and for the purpose drawings and described in the specification hereinafter set forth. that were filed in the Patent Office upon the It consists, further, in a full-plate watchlth clay of March, 1886: Now, therefore, bemovement in which the barrel-arbor and ing desirous of reissuing the said Letters winding-pinion are in part journaled within 15 Patent, I have prepared and do hereby dea bridge that is secured directly to the botclare that the following is a full, clear, and tom plate, substantially as and for the purexact description of the said invention, referpose hereinafter shown and described. ence being had to the accompanying draw- It consists, further, in a full-plate watchings, in which movement in which the barrel-arbor and 20 Figure 1 is a perspective view from the winding-pinion are journaled'within and berear side of a watch-movement containing tween the bottom plate and a bridge that is my improvements. Fig. 2 is a like. view of entirely independent of the top plate, subthe same with the dust bands or strips restantially as and for the purpose hereinafter inoved. Fig. 3 is a perspective of the movespecified.

2 5 ment-plates and barrel with the barrel-bridge It consists, finally, in the combination of removed. Fig. 4 is a like View from the inthe bottom plate, the top plate, the barrelner sides of said bridge and the adjacent bridge, and the dust-bands, substantially as portion of the bottom plate; and Fig. 5 is a and for the purpose hereinafter shown.

section upon line so as of Fig. 1. In the carrying of my invention into prae- 8o 0 Letters of like name and kind refer to like tice I employa watch-movement frame which parts in each of the figures. is composed of a bottom plateA and top plate In the construction of full-plate watch- B, that are connected together and held in movements it has heretofore been customary relative positions in the usual manner. to extend the top plate over the barrel and About one-third of the top-plate Bis removed 5 journal one end of the barrel-arbor in the at the points where the barrel C and the same, or to employ for such barrel-arbor a winding-pinion D are located, and for a corbridge which was constructed separately and responding area the inner face of the bottom afterward attached to the top plate by screws; plate A is raised, so as to give to the latter at but both of such constructions have proved such point about one-fourth greater thick- 4o objectionable, the first-named because it was ness than is had by the remainder of said necessary to remove the entire top plate in plate.

order to take out the barrel, while the last- Fitting into and substantially filling the named construction was lacking in strength space left by the removal of a part of the top and durability. plate B is a bridge E, which extends to and 5 5 The design of my invention is to remove fits upon the raised part a of the plate A, and the objections hereinbefore named; and to is secured thereon by means of two screws c. this end said invention consists, principally, Said bridge incloses the barrel C and fur-. in a full-plate watch-movement in which the nishes a bearing for one end of its arbor c. barrel-bridge extends to and is secured di- It also incloses the winding-pinion D, and, in I00 50 rectly upon the bottom plate, substantially connection with said raised part, furnishes a as and for the purpose hereinafter specified. bearing for the same. The outer side of said bridge has its ends preferably extended slightly over the adjacent portions of said top plate, but such projections may, if desired, be omitted.

As the bridge is secured directly to the bottom plate, it will be seen that it possesses a maximum of solidity and strength, and that it is impracticable for either of the parts journaled within or between said bridge and plate to get out or" place, as is often done in movements of usual construction. In addition to such advantages in the construction shown, said barrel-bridge is entirely independent of the top plate and enables the barrel to be removed and replaced without disturbance of any other portion of the train. By causing the one bridge to journal both the barrel-arbor and winding-pinion the use of one bridge with its screws is avoided and a much better bearing is secured for said pinion than would otherwise be practicable.

The inner face of each of the plates A and B is provided near its edge with a narrow groove a and b, respectively, which terminates at each end of the bridge E in an outward curve, and into such grooves are slipped two thin strips of metal F, that meet or overlapeach other at the opposite side of the movement, and operate to eifectually close the opening between the edges of said plates, so as to exclude dust from the train.

In the use of the term full-plate movement I wish to be understood as meaning a movement in which the train and escapement are covered by a top plate and the barrel is covered wholly or in part by a barrelbridge, while the balance-wheel has its upper pivot j ournaled within a bridge or cock that is supported upon and attached to said top plate, and through an opening in the latter engages with said escapement.

Having thus described my invention, what I claim is 1. A full-plate watch-movement in which the barrel-bridge extends to and is secured directly upon the bottom plate, substantially as and for the purpose specified.

2. A full-plate watch-movement in which the barrel-bridge is secured to and supported entirely by the bottom plate, substantially as and for the purpose shown.

3. A full-plate watch-movement in which the barrel-arbor is in part journaled within a bridge that is'disconnected from and independent of the top plate, substantially as and for the purpose set forth.

4. A full-plate watch-movement in which the barrel-arbor and winding-pinion are in part journaled within a bridge that is secured directly to the bottom plate, substantially as and for the purpose shown and described.

5. A fullplate watch-movement in which the barrel-arbor and winding-pinion are journaled within and between the bottom plate and a bridge that is entirely independent of the top plate, substantially as and for the purpose specified 6. The combination of the bottom plate, the top plate, the barrel-bridge, and the dustbands, substantially as and for the purpose shown. 7

In testimony whereof I hereunto set my hand this 6th day of May, A. D. 1889.

GEORGE HUNTER.

WV'itnesses:

WV. H. CLOUDMAN, W. P. HEMMENS. 

